Method for manufacturing zeolite membrane, and zeolite membrane
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United States of America Patent
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Jan 28, 2014
Grant Date -
Jun 30, 2011
app pub date -
Dec 13, 2010
filing date -
Dec 25, 2009
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Abstract
There is provided a zeolite membrane which is thinner than a conventional membrane and which has improved permeability and a method for manufacturing the zeolite membrane. The method includes a surface layer forming step for forming a surface layer by attaching a low polar polymer on a first surface of a porous substrate to cover the surface, a filling step for filling a masking polymer into pores in the porous substrate from a surface different from the first surface of the porous substrate up to the surface layer by impregnating the porous substrate with the masking polymer and solidifying the masking polymer, and a surface layer removing step for removing the surface layer. After the surface layer removing step, a zeolite membrane is formed on the first surface of the porous substrate.
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